Question

A baseball (m = 149 g) approaches a bat horizontally at
aspeed of 41.9 m/s (94 mi/h) and is hit straight back at a speed
of48.5 m/s (109 mi/h). If the ball is in contact with the batfor a
time of 1.10 ms, what is the average force exerted on theball by
the bat? Neglect the weight of the ball, since it is somuch less
than the force of the bat. Choose the direction of theincoming ball
as the positive direction. N